Finding the Fourth Proportional to 169,163,327.20, 253,744,990.80 and 115,415,615.20
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Solution
The fourth proportional to 169,163,327.20, 253,744,990.80 and 115,415,615.20 is: 173,123,422.80
Step by Step Solution
- Step 1: Write the proportion equation
169,163,327.20 : 253,744,990.80 = 115,415,615.20 : x - Step 2: Convert to fraction form
169,163,327.20/253,744,990.80 = 115,415,615.20/x - Step 3: Cross multiply
169,163,327.20x = 253,744,990.80 × 115,415,615.20 - Step 4: Simplify right side
169,163,327.20x = 29,286,134,217,100,344 - Step 5: Solve for x
x = 29,286,134,217,100,344/169,163,327.20 - Step 6: Final answer
x = 173,123,422.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.